import React, { useState, useEffect, useRef } from 'react';
import { Button, Dropdown, Space } from 'antd';
import { FixedSizeList as List } from 'react-window';
import { useNavigate, useParams } from 'react-router-dom';
import '../../style/main.css';
import '../../style/kuangjia.css';
import { useGlobalContext } from '../GlobalContext';
import SongListlist from './songListlist';

const PersonalSonglist = () => {
  const {
    userId, setUserId,
    favsongrefresh,
    setFavsongRefresh,
    playerlistfresh, setPlayerlistRefresh,
    currentIndex, setCurrentIndex,
    favsongListrefresh, setFavSonglistRefresh,
    playingDatalength, setPlayingDatalength,
    persongListrefresh, setPerSonglistRefresh } = useGlobalContext();

  const [songListlistvisible, setSongListlistvisible] = useState(false)

  const formatDuration = (duration) => {
    const minutes = Math.floor(duration / 60000);
    const seconds = ((duration % 60000) / 1000).toFixed(0);
    return (minutes < 10 ? '0' : '') + minutes + ":" + (seconds < 10 ? '0' : '') + seconds;
  };
  const ulRef = useRef(null)
  const { playlistId } = useParams()
  const [songlistData, setSonglistData] = useState([])
  const [songData, setSongData] = useState([])
  const [userData, setUserData] = useState([])
  const navigate = useNavigate()
  const handleclick = () => {
    navigate(`edit`)
  }
  //获取歌单信息
  useEffect(() => {
    if (playlistId) {
      fetch(`http://localhost:8088/songlist/${playlistId}`, {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      })
        .then((response) => response.json())
        .then((data) => {
          setSonglistData(data.data); // 更新状态，将歌单数据存入 songlistData
        })
        .catch((error) => {
          console.error('Error fetching song data:', error);
        });
    }
  }, [playlistId]);
  //获取用户信息
  useEffect(() => {
    fetch(`http://localhost:8088/api/user/info/${userId}`, {
      method: "GET",
      headers: {
        "Content-Type": "application/json",
      },
    })
      .then((response) => response.json())
      .then((data) => {
        setUserData(data.data)
      })
      .catch((error) => {
        console.error('Error fetching User data:', error);
      })
  }, [userId])

  //获取歌单歌曲
  useEffect(() => {
    fetch(`http://localhost:8088/songs/all/${playlistId}`, {
      method: "GET",
      headers: {
        "Content-Type": "application/json",
      },
    })
      .then((response) => response.json())
      .then((data) => {
        setSongData(data.data)
      })
      .catch((error) => {
        console.error('Error fetching User data:', error);
      })
  }, [playlistId, persongListrefresh])

  const [songsend, setSongsend] = useState({})
  const handleopenclick = (songId) => {
    setSongListlistvisible(true);
    const song = songData.find((s) => s.musicId === songId);
    setSongsend({
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: song.liked,
      userId,
    })
  }
  const handlesongListlisVisible = (visible) => {
    setSongListlistvisible(visible);
  }

  const handeladdSongTolist = async (songId) => {
    const song = songData.find((s) => s.musicId === songId);
    const songPost = {
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: song.liked,
      songIndex: playingDatalength + 1
    };
    try {
      const response = await fetch("http://localhost:8088/playing", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(songPost),
      });

      if (!response.ok) {
        throw new Error("Failed to update favor status");
      }
      setPlayerlistRefresh(!playerlistfresh)
    } catch (error) {
      console.error("Error handling favor request: ", error);
    }
  }

  const handlePlayclick = async () => {
    try {
      // 检查数据库是否存在数据
      const checkResponse = await fetch("http://localhost:8088/playing", {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      const playingData = await checkResponse.json();
      if (playingData.data.length > 0) {
        // 如果存在数据，先清空播放列表
        await handleDeleteAll();
      }

      // 添加当前歌单到播放列表
      const response = await fetch("http://localhost:8088/playing/all", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(songData),
      });
      if (!response.ok) {
        throw new Error("Failed to update playing list");
      }

      // 设置全局变量和刷新状态
      setCurrentIndex(0);
      setPlayerlistRefresh(!playerlistfresh);
      console.log("Successfully added songs to the playing list");
    } catch (error) {
      console.error("Error handling song list update: ", error);
    }
  };


  const handleDeleteAll = async () => {
    try {
      const response = await fetch('http://localhost:8088/playing/deleteall', {
        method: 'DELETE',
        headers: { 'Content-Type': 'application/json' },
      });

      if (!response.ok) {
        throw new Error('Failed to delete all songs');
      }
      // setPlayerlistRefresh(!playerlistfresh);

    } catch (error) {
      console.error('Error deleting all songs:', error);
    }
    // setCurrentIndex(0)
  };

  const handleSongPlayClick = async (index) => {
    try {
      // 检查数据库是否存在数据
      const checkResponse = await fetch("http://localhost:8088/playing", {
        method: "GET",
        headers: {
          "Content-Type": "application/json",
        },
      });
      const playingData = await checkResponse.json();
      if (playingData.data.length > 0) {
        // 如果存在数据，先清空播放列表
        await handleDeleteAll();
      }

      // 添加当前歌单到播放列表
      const response = await fetch("http://localhost:8088/playing/all", {
        method: "POST",
        headers: {
          "Content-Type": "application/json",
        },
        body: JSON.stringify(songData),
      });
      if (!response.ok) {
        throw new Error("Failed to update playing list");
      }

      // 设置全局变量和刷新状态
      setCurrentIndex(index);
      setPlayerlistRefresh(!playerlistfresh);
      console.log("Successfully added songs to the playing list");
    } catch (error) {
      console.error("Error handling song list update: ", error);
    }
  };

  //删除歌曲
  const handleDeletefromSonglist = async (songId) => {
    try {
      const response = await fetch(`http://localhost:8088/songs/${songId}`, {
        method: "DELETE",
      });

      if (!response.ok) {
        throw new Error("Failed to remove song from favorites");
      }
      // setPlayerlistRefresh(!playerlistfresh);
      setPerSonglistRefresh(!persongListrefresh);
    } catch (error) {
      console.error("Error handling favor request: ", error);
    }
  }

  //收藏歌曲
  const handleLikeClick = async (songId) => {
    const song = songData.find((s) => s.musicId === songId);
    const newLikedStatus = !song.liked;
    // 更新状态
    setSongData((prevSongs) =>
      prevSongs.map((s) =>
        s.musicId === songId ? { ...s, liked: newLikedStatus } : s
      )
    );
    const songPost = {
      musicId: song.musicId,
      musicName: song.musicName,
      artName: song.artName,
      album: song.album,
      coverUrl: song.coverUrl,
      playUrl: song.playUrl,
      lyricUrl: `http://localhost:3000/lyric?id=${song.musicId}`,
      dt: song.dt,
      liked: newLikedStatus,
      userId,
    };
    try {
      if (newLikedStatus) {
        // 收藏操作 (POST 请求)
        const response = await fetch("http://localhost:8088/favor", {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify(songPost),
        });

        const perlistresponse = await fetch("http://localhost:8088/songs", {
          method: "POST",
          headers: {
            "Content-Type": "application/json",
          },
          body: JSON.stringify(
            {
              ...songPost,
              songListId: playlistId,
            }
          ),
        });

        if (!response.ok) {
          throw new Error("Failed to update favor status");
        }
        setFavsongRefresh(!favsongrefresh)
        console.log("Successfully added song to favorites:", songId);
      } else {
        // 取消收藏操作 (DELETE 请求)
        const response = await fetch(`http://localhost:8088/favor/${songId}`, {
          method: "DELETE",
        });

        if (!response.ok) {
          throw new Error("Failed to remove song from favorites");
        }
        setFavsongRefresh(!favsongrefresh)

        console.log("Successfully removed song from favorites:", songId);
      }
    } catch (error) {
      console.error("Error handling favor request: ", error);
    }
  };

  const items = (songId) => [
    {
      key: '1',
      label: (
        <a
          href="#"
          onClick={(e) => {
            e.preventDefault(); // 阻止默认行为
            const song = songData.find((s) => s.musicId === songId); // 获取当前歌曲
            if (song.liked) {
              alert("歌曲已收藏");
            } else {
              handleLikeClick(song.musicId); // 执行收藏/取消收藏操作
            }
          }}
        >
          收藏
        </a>
      ),
    },
    {
      key: '2',
      label: (
        <a onClick={() => handleDeletefromSonglist(songId)}>
          删除
        </a>
      ),
    },
    {
      key: '3',
      label: (
        <a onClick={() => { handleopenclick(songId) }}>
          添加到歌单
        </a>
      ),
    },
    {
      key: '4',
      label: (
        <a onClick={() => handeladdSongTolist(songId)}>
          添加到播放
        </a>
      ),
    },
  ];

  // const renderRow = ({ index, style }) => {
  //   const item = songData[index];

  // }
  return (
    <div className="playlistcontainer">
      <div className="playlistinformation">
        <div className='bianji'
          onClick={handleclick}>编辑</div>
        <div className="playlistImg">
          <img src={songlistData.coverUrl} alt="coverImg" />
        </div>
        <div className="list-maininformation">
          <div id="playlistname">{songlistData.songListName}</div>
          <div className="playlistavatar">
            <img src={userData.avatar} alt="" />
            <span id="playlistusernickname">{userData.nickname}</span>
          </div>
          <div className="introduce">{songlistData.description}</div>
          <div className="playlistControl">
            <button onClick={handlePlayclick}><i className="ri-play-fill"></i> 播放</button>
            <button><i className="ri-download-fill"></i> 下载</button>
            <button><i className="ri-heart-3-line"></i> 收藏</button>
            <button><i className="ri-share-fill"></i> 分享</button>
          </div>
        </div>
      </div>
      <div className="playlistnav">
        <ul>
          <li>歌曲</li>
          <li>评论</li>
        </ul>
      </div>
      <div className="search_songlist">
        <div className="serch_nav">
          <div>歌名/歌手</div>
          <div className="serch_nav_right">
            <div>专辑</div>
            <div>时长</div>
          </div>
        </div>
        <ul className='lisMain' ref={ulRef}>
          {/* <List
            height={ulRef.current ? ulRef.current.clientHeight : 0}
            itemCount={songData.length}
            itemSize={50}
            width="100%"
          >
            {renderRow}
          </List> */}
          {songData.map((item, index) => {
            return (
              <li key={index} onDoubleClick={() => handleSongPlayClick(index)}>
                <div className="hideicon">
                  <i className="ri-play-fill"></i>
                </div>
                <div className="search_songlist_left">
                  <div className="song_information">
                    <img
                      src={item.coverUrl}
                      alt={item.musicName}
                    />
                    <div className="song_name">
                      <span id="songname">{item.musicName}</span>
                      <span id="singer">{item.artName}</span>
                    </div>
                  </div>
                  <div className="dowhat">
                    <i
                      className={item.liked ? "ri-heart-3-fill" : "ri-heart-3-line"}// 根据每首歌的状态切换图标
                      onClick={(e) => {
                        e.stopPropagation();
                        handleLikeClick(item.musicId);
                      }}
                    ></i>
                    <div className='menu'>
                      <Space direction="vertical">
                        <Space wrap>
                          <Dropdown
                            menu={{
                              items: items(item.musicId), // 动态传入当前歌曲的 ID
                            }}
                            placement="topLeft"
                            trigger={['click']}
                          >
                            <i className="ri-menu-4-line"></i>
                          </Dropdown>
                        </Space>
                      </Space>
                    </div>
                  </div>
                </div>
                <div className="search_songlist_right">
                  <div id="songalbum">{item.album}</div>
                  <div id="songduration">{formatDuration(item.dt)}</div>
                </div>
              </li>
            )
          })}
        </ul>
      </div>
      {songListlistvisible && <SongListlist onviblechange={handlesongListlisVisible} songsend={songsend} />}

    </div>
  )
}

export default PersonalSonglist